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- /*
- * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
- * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
- * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
- * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
- #include <linux/module.h>
- #include <linux/init.h>
- #include <linux/errno.h>
- #include <linux/pci.h>
- #include <linux/dma-mapping.h>
- #include <linux/slab.h>
- #include <linux/io-mapping.h>
- #include <linux/delay.h>
- #include <linux/mlx4/device.h>
- #include <linux/mlx4/doorbell.h>
- #include "mlx4.h"
- #include "fw.h"
- #include "icm.h"
- MODULE_AUTHOR("Roland Dreier");
- MODULE_DESCRIPTION("Mellanox ConnectX HCA low-level driver");
- MODULE_LICENSE("Dual BSD/GPL");
- MODULE_VERSION(DRV_VERSION);
- struct workqueue_struct *mlx4_wq;
- #ifdef CONFIG_MLX4_DEBUG
- int mlx4_debug_level = 0;
- module_param_named(debug_level, mlx4_debug_level, int, 0644);
- MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
- #endif /* CONFIG_MLX4_DEBUG */
- #ifdef CONFIG_PCI_MSI
- static int msi_x = 1;
- module_param(msi_x, int, 0444);
- MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
- #else /* CONFIG_PCI_MSI */
- #define msi_x (0)
- #endif /* CONFIG_PCI_MSI */
- static int num_vfs;
- module_param(num_vfs, int, 0444);
- MODULE_PARM_DESC(num_vfs, "enable #num_vfs functions if num_vfs > 0");
- static int probe_vf;
- module_param(probe_vf, int, 0644);
- MODULE_PARM_DESC(probe_vf, "number of vfs to probe by pf driver (num_vfs > 0)");
- int mlx4_log_num_mgm_entry_size = 10;
- module_param_named(log_num_mgm_entry_size,
- mlx4_log_num_mgm_entry_size, int, 0444);
- MODULE_PARM_DESC(log_num_mgm_entry_size, "log mgm size, that defines the num"
- " of qp per mcg, for example:"
- " 10 gives 248.range: 9<="
- " log_num_mgm_entry_size <= 12");
- #define HCA_GLOBAL_CAP_MASK 0
- #define PF_CONTEXT_BEHAVIOUR_MASK 0
- static char mlx4_version[] __devinitdata =
- DRV_NAME ": Mellanox ConnectX core driver v"
- DRV_VERSION " (" DRV_RELDATE ")\n";
- static struct mlx4_profile default_profile = {
- .num_qp = 1 << 18,
- .num_srq = 1 << 16,
- .rdmarc_per_qp = 1 << 4,
- .num_cq = 1 << 16,
- .num_mcg = 1 << 13,
- .num_mpt = 1 << 19,
- .num_mtt = 1 << 20, /* It is really num mtt segements */
- };
- static int log_num_mac = 7;
- module_param_named(log_num_mac, log_num_mac, int, 0444);
- MODULE_PARM_DESC(log_num_mac, "Log2 max number of MACs per ETH port (1-7)");
- static int log_num_vlan;
- module_param_named(log_num_vlan, log_num_vlan, int, 0444);
- MODULE_PARM_DESC(log_num_vlan, "Log2 max number of VLANs per ETH port (0-7)");
- /* Log2 max number of VLANs per ETH port (0-7) */
- #define MLX4_LOG_NUM_VLANS 7
- static bool use_prio;
- module_param_named(use_prio, use_prio, bool, 0444);
- MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports "
- "(0/1, default 0)");
- int log_mtts_per_seg = ilog2(MLX4_MTT_ENTRY_PER_SEG);
- module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444);
- MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-7)");
- static int port_type_array[2] = {MLX4_PORT_TYPE_NONE, MLX4_PORT_TYPE_NONE};
- static int arr_argc = 2;
- module_param_array(port_type_array, int, &arr_argc, 0444);
- MODULE_PARM_DESC(port_type_array, "Array of port types: HW_DEFAULT (0) is default "
- "1 for IB, 2 for Ethernet");
- struct mlx4_port_config {
- struct list_head list;
- enum mlx4_port_type port_type[MLX4_MAX_PORTS + 1];
- struct pci_dev *pdev;
- };
- static inline int mlx4_master_get_num_eqs(struct mlx4_dev *dev)
- {
- return dev->caps.reserved_eqs +
- MLX4_MFUNC_EQ_NUM * (dev->num_slaves + 1);
- }
- int mlx4_check_port_params(struct mlx4_dev *dev,
- enum mlx4_port_type *port_type)
- {
- int i;
- for (i = 0; i < dev->caps.num_ports - 1; i++) {
- if (port_type[i] != port_type[i + 1]) {
- if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
- mlx4_err(dev, "Only same port types supported "
- "on this HCA, aborting.\n");
- return -EINVAL;
- }
- if (port_type[i] == MLX4_PORT_TYPE_ETH &&
- port_type[i + 1] == MLX4_PORT_TYPE_IB)
- return -EINVAL;
- }
- }
- for (i = 0; i < dev->caps.num_ports; i++) {
- if (!(port_type[i] & dev->caps.supported_type[i+1])) {
- mlx4_err(dev, "Requested port type for port %d is not "
- "supported on this HCA\n", i + 1);
- return -EINVAL;
- }
- }
- return 0;
- }
- static void mlx4_set_port_mask(struct mlx4_dev *dev)
- {
- int i;
- for (i = 1; i <= dev->caps.num_ports; ++i)
- dev->caps.port_mask[i] = dev->caps.port_type[i];
- }
- static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
- {
- int err;
- int i;
- err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
- if (err) {
- mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
- return err;
- }
- if (dev_cap->min_page_sz > PAGE_SIZE) {
- mlx4_err(dev, "HCA minimum page size of %d bigger than "
- "kernel PAGE_SIZE of %ld, aborting.\n",
- dev_cap->min_page_sz, PAGE_SIZE);
- return -ENODEV;
- }
- if (dev_cap->num_ports > MLX4_MAX_PORTS) {
- mlx4_err(dev, "HCA has %d ports, but we only support %d, "
- "aborting.\n",
- dev_cap->num_ports, MLX4_MAX_PORTS);
- return -ENODEV;
- }
- if (dev_cap->uar_size > pci_resource_len(dev->pdev, 2)) {
- mlx4_err(dev, "HCA reported UAR size of 0x%x bigger than "
- "PCI resource 2 size of 0x%llx, aborting.\n",
- dev_cap->uar_size,
- (unsigned long long) pci_resource_len(dev->pdev, 2));
- return -ENODEV;
- }
- dev->caps.num_ports = dev_cap->num_ports;
- for (i = 1; i <= dev->caps.num_ports; ++i) {
- dev->caps.vl_cap[i] = dev_cap->max_vl[i];
- dev->caps.ib_mtu_cap[i] = dev_cap->ib_mtu[i];
- dev->caps.gid_table_len[i] = dev_cap->max_gids[i];
- dev->caps.pkey_table_len[i] = dev_cap->max_pkeys[i];
- dev->caps.port_width_cap[i] = dev_cap->max_port_width[i];
- dev->caps.eth_mtu_cap[i] = dev_cap->eth_mtu[i];
- dev->caps.def_mac[i] = dev_cap->def_mac[i];
- dev->caps.supported_type[i] = dev_cap->supported_port_types[i];
- dev->caps.suggested_type[i] = dev_cap->suggested_type[i];
- dev->caps.default_sense[i] = dev_cap->default_sense[i];
- dev->caps.trans_type[i] = dev_cap->trans_type[i];
- dev->caps.vendor_oui[i] = dev_cap->vendor_oui[i];
- dev->caps.wavelength[i] = dev_cap->wavelength[i];
- dev->caps.trans_code[i] = dev_cap->trans_code[i];
- }
- dev->caps.uar_page_size = PAGE_SIZE;
- dev->caps.num_uars = dev_cap->uar_size / PAGE_SIZE;
- dev->caps.local_ca_ack_delay = dev_cap->local_ca_ack_delay;
- dev->caps.bf_reg_size = dev_cap->bf_reg_size;
- dev->caps.bf_regs_per_page = dev_cap->bf_regs_per_page;
- dev->caps.max_sq_sg = dev_cap->max_sq_sg;
- dev->caps.max_rq_sg = dev_cap->max_rq_sg;
- dev->caps.max_wqes = dev_cap->max_qp_sz;
- dev->caps.max_qp_init_rdma = dev_cap->max_requester_per_qp;
- dev->caps.max_srq_wqes = dev_cap->max_srq_sz;
- dev->caps.max_srq_sge = dev_cap->max_rq_sg - 1;
- dev->caps.reserved_srqs = dev_cap->reserved_srqs;
- dev->caps.max_sq_desc_sz = dev_cap->max_sq_desc_sz;
- dev->caps.max_rq_desc_sz = dev_cap->max_rq_desc_sz;
- dev->caps.num_qp_per_mgm = mlx4_get_qp_per_mgm(dev);
- /*
- * Subtract 1 from the limit because we need to allocate a
- * spare CQE so the HCA HW can tell the difference between an
- * empty CQ and a full CQ.
- */
- dev->caps.max_cqes = dev_cap->max_cq_sz - 1;
- dev->caps.reserved_cqs = dev_cap->reserved_cqs;
- dev->caps.reserved_eqs = dev_cap->reserved_eqs;
- dev->caps.reserved_mtts = dev_cap->reserved_mtts;
- dev->caps.reserved_mrws = dev_cap->reserved_mrws;
- /* The first 128 UARs are used for EQ doorbells */
- dev->caps.reserved_uars = max_t(int, 128, dev_cap->reserved_uars);
- dev->caps.reserved_pds = dev_cap->reserved_pds;
- dev->caps.reserved_xrcds = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
- dev_cap->reserved_xrcds : 0;
- dev->caps.max_xrcds = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
- dev_cap->max_xrcds : 0;
- dev->caps.mtt_entry_sz = dev_cap->mtt_entry_sz;
- dev->caps.max_msg_sz = dev_cap->max_msg_sz;
- dev->caps.page_size_cap = ~(u32) (dev_cap->min_page_sz - 1);
- dev->caps.flags = dev_cap->flags;
- dev->caps.bmme_flags = dev_cap->bmme_flags;
- dev->caps.reserved_lkey = dev_cap->reserved_lkey;
- dev->caps.stat_rate_support = dev_cap->stat_rate_support;
- dev->caps.max_gso_sz = dev_cap->max_gso_sz;
- /* Sense port always allowed on supported devices for ConnectX1 and 2 */
- if (dev->pdev->device != 0x1003)
- dev->caps.flags |= MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
- dev->caps.log_num_macs = log_num_mac;
- dev->caps.log_num_vlans = MLX4_LOG_NUM_VLANS;
- dev->caps.log_num_prios = use_prio ? 3 : 0;
- for (i = 1; i <= dev->caps.num_ports; ++i) {
- dev->caps.port_type[i] = MLX4_PORT_TYPE_NONE;
- if (dev->caps.supported_type[i]) {
- /* if only ETH is supported - assign ETH */
- if (dev->caps.supported_type[i] == MLX4_PORT_TYPE_ETH)
- dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
- /* if only IB is supported,
- * assign IB only if SRIOV is off*/
- else if (dev->caps.supported_type[i] ==
- MLX4_PORT_TYPE_IB) {
- if (dev->flags & MLX4_FLAG_SRIOV)
- dev->caps.port_type[i] =
- MLX4_PORT_TYPE_NONE;
- else
- dev->caps.port_type[i] =
- MLX4_PORT_TYPE_IB;
- /* if IB and ETH are supported,
- * first of all check if SRIOV is on */
- } else if (dev->flags & MLX4_FLAG_SRIOV)
- dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
- else {
- /* In non-SRIOV mode, we set the port type
- * according to user selection of port type,
- * if usere selected none, take the FW hint */
- if (port_type_array[i-1] == MLX4_PORT_TYPE_NONE)
- dev->caps.port_type[i] = dev->caps.suggested_type[i] ?
- MLX4_PORT_TYPE_ETH : MLX4_PORT_TYPE_IB;
- else
- dev->caps.port_type[i] = port_type_array[i-1];
- }
- }
- /*
- * Link sensing is allowed on the port if 3 conditions are true:
- * 1. Both protocols are supported on the port.
- * 2. Different types are supported on the port
- * 3. FW declared that it supports link sensing
- */
- mlx4_priv(dev)->sense.sense_allowed[i] =
- ((dev->caps.supported_type[i] == MLX4_PORT_TYPE_AUTO) &&
- (dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) &&
- (dev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT));
- /*
- * If "default_sense" bit is set, we move the port to "AUTO" mode
- * and perform sense_port FW command to try and set the correct
- * port type from beginning
- */
- if (mlx4_priv(dev)->sense.sense_allowed[i] && dev->caps.default_sense[i]) {
- enum mlx4_port_type sensed_port = MLX4_PORT_TYPE_NONE;
- dev->caps.possible_type[i] = MLX4_PORT_TYPE_AUTO;
- mlx4_SENSE_PORT(dev, i, &sensed_port);
- if (sensed_port != MLX4_PORT_TYPE_NONE)
- dev->caps.port_type[i] = sensed_port;
- } else {
- dev->caps.possible_type[i] = dev->caps.port_type[i];
- }
- if (dev->caps.log_num_macs > dev_cap->log_max_macs[i]) {
- dev->caps.log_num_macs = dev_cap->log_max_macs[i];
- mlx4_warn(dev, "Requested number of MACs is too much "
- "for port %d, reducing to %d.\n",
- i, 1 << dev->caps.log_num_macs);
- }
- if (dev->caps.log_num_vlans > dev_cap->log_max_vlans[i]) {
- dev->caps.log_num_vlans = dev_cap->log_max_vlans[i];
- mlx4_warn(dev, "Requested number of VLANs is too much "
- "for port %d, reducing to %d.\n",
- i, 1 << dev->caps.log_num_vlans);
- }
- }
- dev->caps.max_counters = 1 << ilog2(dev_cap->max_counters);
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] = dev_cap->reserved_qps;
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] =
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] =
- (1 << dev->caps.log_num_macs) *
- (1 << dev->caps.log_num_vlans) *
- (1 << dev->caps.log_num_prios) *
- dev->caps.num_ports;
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH] = MLX4_NUM_FEXCH;
- dev->caps.reserved_qps = dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] +
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] +
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] +
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH];
- return 0;
- }
- /*The function checks if there are live vf, return the num of them*/
- static int mlx4_how_many_lives_vf(struct mlx4_dev *dev)
- {
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_slave_state *s_state;
- int i;
- int ret = 0;
- for (i = 1/*the ppf is 0*/; i < dev->num_slaves; ++i) {
- s_state = &priv->mfunc.master.slave_state[i];
- if (s_state->active && s_state->last_cmd !=
- MLX4_COMM_CMD_RESET) {
- mlx4_warn(dev, "%s: slave: %d is still active\n",
- __func__, i);
- ret++;
- }
- }
- return ret;
- }
- int mlx4_is_slave_active(struct mlx4_dev *dev, int slave)
- {
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_slave_state *s_slave;
- if (!mlx4_is_master(dev))
- return 0;
- s_slave = &priv->mfunc.master.slave_state[slave];
- return !!s_slave->active;
- }
- EXPORT_SYMBOL(mlx4_is_slave_active);
- static int mlx4_slave_cap(struct mlx4_dev *dev)
- {
- int err;
- u32 page_size;
- struct mlx4_dev_cap dev_cap;
- struct mlx4_func_cap func_cap;
- struct mlx4_init_hca_param hca_param;
- int i;
- memset(&hca_param, 0, sizeof(hca_param));
- err = mlx4_QUERY_HCA(dev, &hca_param);
- if (err) {
- mlx4_err(dev, "QUERY_HCA command failed, aborting.\n");
- return err;
- }
- /*fail if the hca has an unknown capability */
- if ((hca_param.global_caps | HCA_GLOBAL_CAP_MASK) !=
- HCA_GLOBAL_CAP_MASK) {
- mlx4_err(dev, "Unknown hca global capabilities\n");
- return -ENOSYS;
- }
- mlx4_log_num_mgm_entry_size = hca_param.log_mc_entry_sz;
- memset(&dev_cap, 0, sizeof(dev_cap));
- err = mlx4_dev_cap(dev, &dev_cap);
- if (err) {
- mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
- return err;
- }
- page_size = ~dev->caps.page_size_cap + 1;
- mlx4_warn(dev, "HCA minimum page size:%d\n", page_size);
- if (page_size > PAGE_SIZE) {
- mlx4_err(dev, "HCA minimum page size of %d bigger than "
- "kernel PAGE_SIZE of %ld, aborting.\n",
- page_size, PAGE_SIZE);
- return -ENODEV;
- }
- /* slave gets uar page size from QUERY_HCA fw command */
- dev->caps.uar_page_size = 1 << (hca_param.uar_page_sz + 12);
- /* TODO: relax this assumption */
- if (dev->caps.uar_page_size != PAGE_SIZE) {
- mlx4_err(dev, "UAR size:%d != kernel PAGE_SIZE of %ld\n",
- dev->caps.uar_page_size, PAGE_SIZE);
- return -ENODEV;
- }
- memset(&func_cap, 0, sizeof(func_cap));
- err = mlx4_QUERY_FUNC_CAP(dev, &func_cap);
- if (err) {
- mlx4_err(dev, "QUERY_FUNC_CAP command failed, aborting.\n");
- return err;
- }
- if ((func_cap.pf_context_behaviour | PF_CONTEXT_BEHAVIOUR_MASK) !=
- PF_CONTEXT_BEHAVIOUR_MASK) {
- mlx4_err(dev, "Unknown pf context behaviour\n");
- return -ENOSYS;
- }
- dev->caps.num_ports = func_cap.num_ports;
- dev->caps.num_qps = func_cap.qp_quota;
- dev->caps.num_srqs = func_cap.srq_quota;
- dev->caps.num_cqs = func_cap.cq_quota;
- dev->caps.num_eqs = func_cap.max_eq;
- dev->caps.reserved_eqs = func_cap.reserved_eq;
- dev->caps.num_mpts = func_cap.mpt_quota;
- dev->caps.num_mtts = func_cap.mtt_quota;
- dev->caps.num_pds = MLX4_NUM_PDS;
- dev->caps.num_mgms = 0;
- dev->caps.num_amgms = 0;
- for (i = 1; i <= dev->caps.num_ports; ++i)
- dev->caps.port_mask[i] = dev->caps.port_type[i];
- if (dev->caps.num_ports > MLX4_MAX_PORTS) {
- mlx4_err(dev, "HCA has %d ports, but we only support %d, "
- "aborting.\n", dev->caps.num_ports, MLX4_MAX_PORTS);
- return -ENODEV;
- }
- if (dev->caps.uar_page_size * (dev->caps.num_uars -
- dev->caps.reserved_uars) >
- pci_resource_len(dev->pdev, 2)) {
- mlx4_err(dev, "HCA reported UAR region size of 0x%x bigger than "
- "PCI resource 2 size of 0x%llx, aborting.\n",
- dev->caps.uar_page_size * dev->caps.num_uars,
- (unsigned long long) pci_resource_len(dev->pdev, 2));
- return -ENODEV;
- }
- #if 0
- mlx4_warn(dev, "sqp_demux:%d\n", dev->caps.sqp_demux);
- mlx4_warn(dev, "num_uars:%d reserved_uars:%d uar region:0x%x bar2:0x%llx\n",
- dev->caps.num_uars, dev->caps.reserved_uars,
- dev->caps.uar_page_size * dev->caps.num_uars,
- pci_resource_len(dev->pdev, 2));
- mlx4_warn(dev, "num_eqs:%d reserved_eqs:%d\n", dev->caps.num_eqs,
- dev->caps.reserved_eqs);
- mlx4_warn(dev, "num_pds:%d reserved_pds:%d slave_pd_shift:%d pd_base:%d\n",
- dev->caps.num_pds, dev->caps.reserved_pds,
- dev->caps.slave_pd_shift, dev->caps.pd_base);
- #endif
- return 0;
- }
- /*
- * Change the port configuration of the device.
- * Every user of this function must hold the port mutex.
- */
- int mlx4_change_port_types(struct mlx4_dev *dev,
- enum mlx4_port_type *port_types)
- {
- int err = 0;
- int change = 0;
- int port;
- for (port = 0; port < dev->caps.num_ports; port++) {
- /* Change the port type only if the new type is different
- * from the current, and not set to Auto */
- if (port_types[port] != dev->caps.port_type[port + 1])
- change = 1;
- }
- if (change) {
- mlx4_unregister_device(dev);
- for (port = 1; port <= dev->caps.num_ports; port++) {
- mlx4_CLOSE_PORT(dev, port);
- dev->caps.port_type[port] = port_types[port - 1];
- err = mlx4_SET_PORT(dev, port);
- if (err) {
- mlx4_err(dev, "Failed to set port %d, "
- "aborting\n", port);
- goto out;
- }
- }
- mlx4_set_port_mask(dev);
- err = mlx4_register_device(dev);
- }
- out:
- return err;
- }
- static ssize_t show_port_type(struct device *dev,
- struct device_attribute *attr,
- char *buf)
- {
- struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
- port_attr);
- struct mlx4_dev *mdev = info->dev;
- char type[8];
- sprintf(type, "%s",
- (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB) ?
- "ib" : "eth");
- if (mdev->caps.possible_type[info->port] == MLX4_PORT_TYPE_AUTO)
- sprintf(buf, "auto (%s)\n", type);
- else
- sprintf(buf, "%s\n", type);
- return strlen(buf);
- }
- static ssize_t set_port_type(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
- {
- struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
- port_attr);
- struct mlx4_dev *mdev = info->dev;
- struct mlx4_priv *priv = mlx4_priv(mdev);
- enum mlx4_port_type types[MLX4_MAX_PORTS];
- enum mlx4_port_type new_types[MLX4_MAX_PORTS];
- int i;
- int err = 0;
- if (!strcmp(buf, "ib\n"))
- info->tmp_type = MLX4_PORT_TYPE_IB;
- else if (!strcmp(buf, "eth\n"))
- info->tmp_type = MLX4_PORT_TYPE_ETH;
- else if (!strcmp(buf, "auto\n"))
- info->tmp_type = MLX4_PORT_TYPE_AUTO;
- else {
- mlx4_err(mdev, "%s is not supported port type\n", buf);
- return -EINVAL;
- }
- mlx4_stop_sense(mdev);
- mutex_lock(&priv->port_mutex);
- /* Possible type is always the one that was delivered */
- mdev->caps.possible_type[info->port] = info->tmp_type;
- for (i = 0; i < mdev->caps.num_ports; i++) {
- types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type :
- mdev->caps.possible_type[i+1];
- if (types[i] == MLX4_PORT_TYPE_AUTO)
- types[i] = mdev->caps.port_type[i+1];
- }
- if (!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) &&
- !(mdev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT)) {
- for (i = 1; i <= mdev->caps.num_ports; i++) {
- if (mdev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) {
- mdev->caps.possible_type[i] = mdev->caps.port_type[i];
- err = -EINVAL;
- }
- }
- }
- if (err) {
- mlx4_err(mdev, "Auto sensing is not supported on this HCA. "
- "Set only 'eth' or 'ib' for both ports "
- "(should be the same)\n");
- goto out;
- }
- mlx4_do_sense_ports(mdev, new_types, types);
- err = mlx4_check_port_params(mdev, new_types);
- if (err)
- goto out;
- /* We are about to apply the changes after the configuration
- * was verified, no need to remember the temporary types
- * any more */
- for (i = 0; i < mdev->caps.num_ports; i++)
- priv->port[i + 1].tmp_type = 0;
- err = mlx4_change_port_types(mdev, new_types);
- out:
- mlx4_start_sense(mdev);
- mutex_unlock(&priv->port_mutex);
- return err ? err : count;
- }
- enum ibta_mtu {
- IB_MTU_256 = 1,
- IB_MTU_512 = 2,
- IB_MTU_1024 = 3,
- IB_MTU_2048 = 4,
- IB_MTU_4096 = 5
- };
- static inline int int_to_ibta_mtu(int mtu)
- {
- switch (mtu) {
- case 256: return IB_MTU_256;
- case 512: return IB_MTU_512;
- case 1024: return IB_MTU_1024;
- case 2048: return IB_MTU_2048;
- case 4096: return IB_MTU_4096;
- default: return -1;
- }
- }
- static inline int ibta_mtu_to_int(enum ibta_mtu mtu)
- {
- switch (mtu) {
- case IB_MTU_256: return 256;
- case IB_MTU_512: return 512;
- case IB_MTU_1024: return 1024;
- case IB_MTU_2048: return 2048;
- case IB_MTU_4096: return 4096;
- default: return -1;
- }
- }
- static ssize_t show_port_ib_mtu(struct device *dev,
- struct device_attribute *attr,
- char *buf)
- {
- struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
- port_mtu_attr);
- struct mlx4_dev *mdev = info->dev;
- if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH)
- mlx4_warn(mdev, "port level mtu is only used for IB ports\n");
- sprintf(buf, "%d\n",
- ibta_mtu_to_int(mdev->caps.port_ib_mtu[info->port]));
- return strlen(buf);
- }
- static ssize_t set_port_ib_mtu(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
- {
- struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
- port_mtu_attr);
- struct mlx4_dev *mdev = info->dev;
- struct mlx4_priv *priv = mlx4_priv(mdev);
- int err, port, mtu, ibta_mtu = -1;
- if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH) {
- mlx4_warn(mdev, "port level mtu is only used for IB ports\n");
- return -EINVAL;
- }
- err = sscanf(buf, "%d", &mtu);
- if (err > 0)
- ibta_mtu = int_to_ibta_mtu(mtu);
- if (err <= 0 || ibta_mtu < 0) {
- mlx4_err(mdev, "%s is invalid IBTA mtu\n", buf);
- return -EINVAL;
- }
- mdev->caps.port_ib_mtu[info->port] = ibta_mtu;
- mlx4_stop_sense(mdev);
- mutex_lock(&priv->port_mutex);
- mlx4_unregister_device(mdev);
- for (port = 1; port <= mdev->caps.num_ports; port++) {
- mlx4_CLOSE_PORT(mdev, port);
- err = mlx4_SET_PORT(mdev, port);
- if (err) {
- mlx4_err(mdev, "Failed to set port %d, "
- "aborting\n", port);
- goto err_set_port;
- }
- }
- err = mlx4_register_device(mdev);
- err_set_port:
- mutex_unlock(&priv->port_mutex);
- mlx4_start_sense(mdev);
- return err ? err : count;
- }
- static int mlx4_load_fw(struct mlx4_dev *dev)
- {
- struct mlx4_priv *priv = mlx4_priv(dev);
- int err;
- priv->fw.fw_icm = mlx4_alloc_icm(dev, priv->fw.fw_pages,
- GFP_HIGHUSER | __GFP_NOWARN, 0);
- if (!priv->fw.fw_icm) {
- mlx4_err(dev, "Couldn't allocate FW area, aborting.\n");
- return -ENOMEM;
- }
- err = mlx4_MAP_FA(dev, priv->fw.fw_icm);
- if (err) {
- mlx4_err(dev, "MAP_FA command failed, aborting.\n");
- goto err_free;
- }
- err = mlx4_RUN_FW(dev);
- if (err) {
- mlx4_err(dev, "RUN_FW command failed, aborting.\n");
- goto err_unmap_fa;
- }
- return 0;
- err_unmap_fa:
- mlx4_UNMAP_FA(dev);
- err_free:
- mlx4_free_icm(dev, priv->fw.fw_icm, 0);
- return err;
- }
- static int mlx4_init_cmpt_table(struct mlx4_dev *dev, u64 cmpt_base,
- int cmpt_entry_sz)
- {
- struct mlx4_priv *priv = mlx4_priv(dev);
- int err;
- int num_eqs;
- err = mlx4_init_icm_table(dev, &priv->qp_table.cmpt_table,
- cmpt_base +
- ((u64) (MLX4_CMPT_TYPE_QP *
- cmpt_entry_sz) << MLX4_CMPT_SHIFT),
- cmpt_entry_sz, dev->caps.num_qps,
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
- 0, 0);
- if (err)
- goto err;
- err = mlx4_init_icm_table(dev, &priv->srq_table.cmpt_table,
- cmpt_base +
- ((u64) (MLX4_CMPT_TYPE_SRQ *
- cmpt_entry_sz) << MLX4_CMPT_SHIFT),
- cmpt_entry_sz, dev->caps.num_srqs,
- dev->caps.reserved_srqs, 0, 0);
- if (err)
- goto err_qp;
- err = mlx4_init_icm_table(dev, &priv->cq_table.cmpt_table,
- cmpt_base +
- ((u64) (MLX4_CMPT_TYPE_CQ *
- cmpt_entry_sz) << MLX4_CMPT_SHIFT),
- cmpt_entry_sz, dev->caps.num_cqs,
- dev->caps.reserved_cqs, 0, 0);
- if (err)
- goto err_srq;
- num_eqs = (mlx4_is_master(dev)) ?
- roundup_pow_of_two(mlx4_master_get_num_eqs(dev)) :
- dev->caps.num_eqs;
- err = mlx4_init_icm_table(dev, &priv->eq_table.cmpt_table,
- cmpt_base +
- ((u64) (MLX4_CMPT_TYPE_EQ *
- cmpt_entry_sz) << MLX4_CMPT_SHIFT),
- cmpt_entry_sz, num_eqs, num_eqs, 0, 0);
- if (err)
- goto err_cq;
- return 0;
- err_cq:
- mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
- err_srq:
- mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
- err_qp:
- mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
- err:
- return err;
- }
- static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
- struct mlx4_init_hca_param *init_hca, u64 icm_size)
- {
- struct mlx4_priv *priv = mlx4_priv(dev);
- u64 aux_pages;
- int num_eqs;
- int err;
- err = mlx4_SET_ICM_SIZE(dev, icm_size, &aux_pages);
- if (err) {
- mlx4_err(dev, "SET_ICM_SIZE command failed, aborting.\n");
- return err;
- }
- mlx4_dbg(dev, "%lld KB of HCA context requires %lld KB aux memory.\n",
- (unsigned long long) icm_size >> 10,
- (unsigned long long) aux_pages << 2);
- priv->fw.aux_icm = mlx4_alloc_icm(dev, aux_pages,
- GFP_HIGHUSER | __GFP_NOWARN, 0);
- if (!priv->fw.aux_icm) {
- mlx4_err(dev, "Couldn't allocate aux memory, aborting.\n");
- return -ENOMEM;
- }
- err = mlx4_MAP_ICM_AUX(dev, priv->fw.aux_icm);
- if (err) {
- mlx4_err(dev, "MAP_ICM_AUX command failed, aborting.\n");
- goto err_free_aux;
- }
- err = mlx4_init_cmpt_table(dev, init_hca->cmpt_base, dev_cap->cmpt_entry_sz);
- if (err) {
- mlx4_err(dev, "Failed to map cMPT context memory, aborting.\n");
- goto err_unmap_aux;
- }
- num_eqs = (mlx4_is_master(dev)) ?
- roundup_pow_of_two(mlx4_master_get_num_eqs(dev)) :
- dev->caps.num_eqs;
- err = mlx4_init_icm_table(dev, &priv->eq_table.table,
- init_hca->eqc_base, dev_cap->eqc_entry_sz,
- num_eqs, num_eqs, 0, 0);
- if (err) {
- mlx4_err(dev, "Failed to map EQ context memory, aborting.\n");
- goto err_unmap_cmpt;
- }
- /*
- * Reserved MTT entries must be aligned up to a cacheline
- * boundary, since the FW will write to them, while the driver
- * writes to all other MTT entries. (The variable
- * dev->caps.mtt_entry_sz below is really the MTT segment
- * size, not the raw entry size)
- */
- dev->caps.reserved_mtts =
- ALIGN(dev->caps.reserved_mtts * dev->caps.mtt_entry_sz,
- dma_get_cache_alignment()) / dev->caps.mtt_entry_sz;
- err = mlx4_init_icm_table(dev, &priv->mr_table.mtt_table,
- init_hca->mtt_base,
- dev->caps.mtt_entry_sz,
- dev->caps.num_mtts,
- dev->caps.reserved_mtts, 1, 0);
- if (err) {
- mlx4_err(dev, "Failed to map MTT context memory, aborting.\n");
- goto err_unmap_eq;
- }
- err = mlx4_init_icm_table(dev, &priv->mr_table.dmpt_table,
- init_hca->dmpt_base,
- dev_cap->dmpt_entry_sz,
- dev->caps.num_mpts,
- dev->caps.reserved_mrws, 1, 1);
- if (err) {
- mlx4_err(dev, "Failed to map dMPT context memory, aborting.\n");
- goto err_unmap_mtt;
- }
- err = mlx4_init_icm_table(dev, &priv->qp_table.qp_table,
- init_hca->qpc_base,
- dev_cap->qpc_entry_sz,
- dev->caps.num_qps,
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
- 0, 0);
- if (err) {
- mlx4_err(dev, "Failed to map QP context memory, aborting.\n");
- goto err_unmap_dmpt;
- }
- err = mlx4_init_icm_table(dev, &priv->qp_table.auxc_table,
- init_hca->auxc_base,
- dev_cap->aux_entry_sz,
- dev->caps.num_qps,
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
- 0, 0);
- if (err) {
- mlx4_err(dev, "Failed to map AUXC context memory, aborting.\n");
- goto err_unmap_qp;
- }
- err = mlx4_init_icm_table(dev, &priv->qp_table.altc_table,
- init_hca->altc_base,
- dev_cap->altc_entry_sz,
- dev->caps.num_qps,
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
- 0, 0);
- if (err) {
- mlx4_err(dev, "Failed to map ALTC context memory, aborting.\n");
- goto err_unmap_auxc;
- }
- err = mlx4_init_icm_table(dev, &priv->qp_table.rdmarc_table,
- init_hca->rdmarc_base,
- dev_cap->rdmarc_entry_sz << priv->qp_table.rdmarc_shift,
- dev->caps.num_qps,
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
- 0, 0);
- if (err) {
- mlx4_err(dev, "Failed to map RDMARC context memory, aborting\n");
- goto err_unmap_altc;
- }
- err = mlx4_init_icm_table(dev, &priv->cq_table.table,
- init_hca->cqc_base,
- dev_cap->cqc_entry_sz,
- dev->caps.num_cqs,
- dev->caps.reserved_cqs, 0, 0);
- if (err) {
- mlx4_err(dev, "Failed to map CQ context memory, aborting.\n");
- goto err_unmap_rdmarc;
- }
- err = mlx4_init_icm_table(dev, &priv->srq_table.table,
- init_hca->srqc_base,
- dev_cap->srq_entry_sz,
- dev->caps.num_srqs,
- dev->caps.reserved_srqs, 0, 0);
- if (err) {
- mlx4_err(dev, "Failed to map SRQ context memory, aborting.\n");
- goto err_unmap_cq;
- }
- /*
- * It's not strictly required, but for simplicity just map the
- * whole multicast group table now. The table isn't very big
- * and it's a lot easier than trying to track ref counts.
- */
- err = mlx4_init_icm_table(dev, &priv->mcg_table.table,
- init_hca->mc_base,
- mlx4_get_mgm_entry_size(dev),
- dev->caps.num_mgms + dev->caps.num_amgms,
- dev->caps.num_mgms + dev->caps.num_amgms,
- 0, 0);
- if (err) {
- mlx4_err(dev, "Failed to map MCG context memory, aborting.\n");
- goto err_unmap_srq;
- }
- return 0;
- err_unmap_srq:
- mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
- err_unmap_cq:
- mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
- err_unmap_rdmarc:
- mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
- err_unmap_altc:
- mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
- err_unmap_auxc:
- mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
- err_unmap_qp:
- mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
- err_unmap_dmpt:
- mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
- err_unmap_mtt:
- mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
- err_unmap_eq:
- mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
- err_unmap_cmpt:
- mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
- mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
- mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
- mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
- err_unmap_aux:
- mlx4_UNMAP_ICM_AUX(dev);
- err_free_aux:
- mlx4_free_icm(dev, priv->fw.aux_icm, 0);
- return err;
- }
- static void mlx4_free_icms(struct mlx4_dev *dev)
- {
- struct mlx4_priv *priv = mlx4_priv(dev);
- mlx4_cleanup_icm_table(dev, &priv->mcg_table.table);
- mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
- mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
- mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
- mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
- mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
- mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
- mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
- mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
- mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
- mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
- mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
- mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
- mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
- mlx4_UNMAP_ICM_AUX(dev);
- mlx4_free_icm(dev, priv->fw.aux_icm, 0);
- }
- static void mlx4_slave_exit(struct mlx4_dev *dev)
- {
- struct mlx4_priv *priv = mlx4_priv(dev);
- down(&priv->cmd.slave_sem);
- if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, MLX4_COMM_TIME))
- mlx4_warn(dev, "Failed to close slave function.\n");
- up(&priv->cmd.slave_sem);
- }
- static int map_bf_area(struct mlx4_dev *dev)
- {
- struct mlx4_priv *priv = mlx4_priv(dev);
- resource_size_t bf_start;
- resource_size_t bf_len;
- int err = 0;
- if (!dev->caps.bf_reg_size)
- return -ENXIO;
- bf_start = pci_resource_start(dev->pdev, 2) +
- (dev->caps.num_uars << PAGE_SHIFT);
- bf_len = pci_resource_len(dev->pdev, 2) -
- (dev->caps.num_uars << PAGE_SHIFT);
- priv->bf_mapping = io_mapping_create_wc(bf_start, bf_len);
- if (!priv->bf_mapping)
- err = -ENOMEM;
- return err;
- }
- static void unmap_bf_area(struct mlx4_dev *dev)
- {
- if (mlx4_priv(dev)->bf_mapping)
- io_mapping_free(mlx4_priv(dev)->bf_mapping);
- }
- static void mlx4_close_hca(struct mlx4_dev *dev)
- {
- unmap_bf_area(dev);
- if (mlx4_is_slave(dev))
- mlx4_slave_exit(dev);
- else {
- mlx4_CLOSE_HCA(dev, 0);
- mlx4_free_icms(dev);
- mlx4_UNMAP_FA(dev);
- mlx4_free_icm(dev, mlx4_priv(dev)->fw.fw_icm, 0);
- }
- }
- static int mlx4_init_slave(struct mlx4_dev *dev)
- {
- struct mlx4_priv *priv = mlx4_priv(dev);
- u64 dma = (u64) priv->mfunc.vhcr_dma;
- int num_of_reset_retries = NUM_OF_RESET_RETRIES;
- int ret_from_reset = 0;
- u32 slave_read;
- u32 cmd_channel_ver;
- down(&priv->cmd.slave_sem);
- priv->cmd.max_cmds = 1;
- mlx4_warn(dev, "Sending reset\n");
- ret_from_reset = mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0,
- MLX4_COMM_TIME);
- /* if we are in the middle of flr the slave will try
- * NUM_OF_RESET_RETRIES times before leaving.*/
- if (ret_from_reset) {
- if (MLX4_DELAY_RESET_SLAVE == ret_from_reset) {
- msleep(SLEEP_TIME_IN_RESET);
- while (ret_from_reset && num_of_reset_retries) {
- mlx4_warn(dev, "slave is currently in the"
- "middle of FLR. retrying..."
- "(try num:%d)\n",
- (NUM_OF_RESET_RETRIES -
- num_of_reset_retries + 1));
- ret_from_reset =
- mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET,
- 0, MLX4_COMM_TIME);
- num_of_reset_retries = num_of_reset_retries - 1;
- }
- } else
- goto err;
- }
- /* check the driver version - the slave I/F revision
- * must match the master's */
- slave_read = swab32(readl(&priv->mfunc.comm->slave_read));
- cmd_channel_ver = mlx4_comm_get_version();
- if (MLX4_COMM_GET_IF_REV(cmd_channel_ver) !=
- MLX4_COMM_GET_IF_REV(slave_read)) {
- mlx4_err(dev, "slave driver version is not supported"
- " by the master\n");
- goto err;
- }
- mlx4_warn(dev, "Sending vhcr0\n");
- if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR0, dma >> 48,
- MLX4_COMM_TIME))
- goto err;
- if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR1, dma >> 32,
- MLX4_COMM_TIME))
- goto err;
- if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR2, dma >> 16,
- MLX4_COMM_TIME))
- goto err;
- if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR_EN, dma, MLX4_COMM_TIME))
- goto err;
- up(&priv->cmd.slave_sem);
- return 0;
- err:
- mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, 0);
- up(&priv->cmd.slave_sem);
- return -EIO;
- }
- static int mlx4_init_hca(struct mlx4_dev *dev)
- {
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_adapter adapter;
- struct mlx4_dev_cap dev_cap;
- struct mlx4_mod_stat_cfg mlx4_cfg;
- struct mlx4_profile profile;
- struct mlx4_init_hca_param init_hca;
- u64 icm_size;
- int err;
- if (!mlx4_is_slave(dev)) {
- err = mlx4_QUERY_FW(dev);
- if (err) {
- if (err == -EACCES)
- mlx4_info(dev, "non-primary physical function, skipping.\n");
- else
- mlx4_err(dev, "QUERY_FW command failed, aborting.\n");
- goto unmap_bf;
- }
- err = mlx4_load_fw(dev);
- if (err) {
- mlx4_err(dev, "Failed to start FW, aborting.\n");
- goto unmap_bf;
- }
- mlx4_cfg.log_pg_sz_m = 1;
- mlx4_cfg.log_pg_sz = 0;
- err = mlx4_MOD_STAT_CFG(dev, &mlx4_cfg);
- if (err)
- mlx4_warn(dev, "Failed to override log_pg_sz parameter\n");
- err = mlx4_dev_cap(dev, &dev_cap);
- if (err) {
- mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
- goto err_stop_fw;
- }
- profile = default_profile;
- icm_size = mlx4_make_profile(dev, &profile, &dev_cap,
- &init_hca);
- if ((long long) icm_size < 0) {
- err = icm_size;
- goto err_stop_fw;
- }
- dev->caps.max_fmr_maps = (1 << (32 - ilog2(dev->caps.num_mpts))) - 1;
- init_hca.log_uar_sz = ilog2(dev->caps.num_uars);
- init_hca.uar_page_sz = PAGE_SHIFT - 12;
- err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size);
- if (err)
- goto err_stop_fw;
- err = mlx4_INIT_HCA(dev, &init_hca);
- if (err) {
- mlx4_err(dev, "INIT_HCA command failed, aborting.\n");
- goto err_free_icm;
- }
- } else {
- err = mlx4_init_slave(dev);
- if (err) {
- mlx4_err(dev, "Failed to initialize slave\n");
- goto unmap_bf;
- }
- err = mlx4_slave_cap(dev);
- if (err) {
- mlx4_err(dev, "Failed to obtain slave caps\n");
- goto err_close;
- }
- }
- if (map_bf_area(dev))
- mlx4_dbg(dev, "Failed to map blue flame area\n");
- /*Only the master set the ports, all the rest got it from it.*/
- if (!mlx4_is_slave(dev))
- mlx4_set_port_mask(dev);
- err = mlx4_QUERY_ADAPTER(dev, &adapter);
- if (err) {
- mlx4_err(dev, "QUERY_ADAPTER command failed, aborting.\n");
- goto err_close;
- }
- priv->eq_table.inta_pin = adapter.inta_pin;
- memcpy(dev->board_id, adapter.board_id, sizeof dev->board_id);
- return 0;
- err_close:
- mlx4_close_hca(dev);
- err_free_icm:
- if (!mlx4_is_slave(dev))
- mlx4_free_icms(dev);
- err_stop_fw:
- if (!mlx4_is_slave(dev)) {
- mlx4_UNMAP_FA(dev);
- mlx4_free_icm(dev, priv->fw.fw_icm, 0);
- }
- unmap_bf:
- unmap_bf_area(dev);
- return err;
- }
- static int mlx4_init_counters_table(struct mlx4_dev *dev)
- {
- struct mlx4_priv *priv = mlx4_priv(dev);
- int nent;
- if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
- return -ENOENT;
- nent = dev->caps.max_counters;
- return mlx4_bitmap_init(&priv->counters_bitmap, nent, nent - 1, 0, 0);
- }
- static void mlx4_cleanup_counters_table(struct mlx4_dev *dev)
- {
- mlx4_bitmap_cleanup(&mlx4_priv(dev)->counters_bitmap);
- }
- int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
- {
- struct mlx4_priv *priv = mlx4_priv(dev);
- if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
- return -ENOENT;
- *idx = mlx4_bitmap_alloc(&priv->counters_bitmap);
- if (*idx == -1)
- return -ENOMEM;
- return 0;
- }
- EXPORT_SYMBOL_GPL(mlx4_counter_alloc);
- void mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
- {
- mlx4_bitmap_free(&mlx4_priv(dev)->counters_bitmap, idx);
- return;
- }
- EXPORT_SYMBOL_GPL(mlx4_counter_free);
- static int mlx4_setup_hca(struct mlx4_dev *dev)
- {
- struct mlx4_priv *priv = mlx4_priv(dev);
- int err;
- int port;
- __be32 ib_port_default_caps;
- err = mlx4_init_uar_table(dev);
- if (err) {
- mlx4_err(dev, "Failed to initialize "
- "user access region table, aborting.\n");
- return err;
- }
- err = mlx4_uar_alloc(dev, &priv->driver_uar);
- if (err) {
- mlx4_err(dev, "Failed to allocate driver access region, "
- "aborting.\n");
- goto err_uar_table_free;
- }
- priv->kar = ioremap((phys_addr_t) priv->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
- if (!priv->kar) {
- mlx4_err(dev, "Couldn't map kernel access region, "
- "aborting.\n");
- err = -ENOMEM;
- goto err_uar_free;
- }
- err = mlx4_init_pd_table(dev);
- if (err) {
- mlx4_err(dev, "Failed to initialize "
- "protection domain table, aborting.\n");
- goto err_kar_unmap;
- }
- err = mlx4_init_xrcd_table(dev);
- if (err) {
- mlx4_err(dev, "Failed to initialize "
- "reliable connection domain table, aborting.\n");
- goto err_pd_table_free;
- }
- err = mlx4_init_mr_table(dev);
- if (err) {
- mlx4_err(dev, "Failed to initialize "
- "memory region table, aborting.\n");
- goto err_xrcd_table_free;
- }
- err = mlx4_init_eq_table(dev);
- if (err) {
- mlx4_err(dev, "Failed to initialize "
- "event queue table, aborting.\n");
- goto err_mr_table_free;
- }
- err = mlx4_cmd_use_events(dev);
- if (err) {
- mlx4_err(dev, "Failed to switch to event-driven "
- "firmware commands, aborting.\n");
- goto err_eq_table_free;
- }
- err = mlx4_NOP(dev);
- if (err) {
- if (dev->flags & MLX4_FLAG_MSI_X) {
- mlx4_warn(dev, "NOP command failed to generate MSI-X "
- "interrupt IRQ %d).\n",
- priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
- mlx4_warn(dev, "Trying again without MSI-X.\n");
- } else {
- mlx4_err(dev, "NOP command failed to generate interrupt "
- "(IRQ %d), aborting.\n",
- priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
- mlx4_err(dev, "BIOS or ACPI interrupt routing problem?\n");
- }
- goto err_cmd_poll;
- }
- mlx4_dbg(dev, "NOP command IRQ test passed\n");
- err = mlx4_init_cq_table(dev);
- if (err) {
- mlx4_err(dev, "Failed to initialize "
- "completion queue table, aborting.\n");
- goto err_cmd_poll;
- }
- err = mlx4_init_srq_table(dev);
- if (err) {
- mlx4_err(dev, "Failed to initialize "
- "shared receive queue table, aborting.\n");
- goto err_cq_table_free;
- }
- err = mlx4_init_qp_table(dev);
- if (err) {
- mlx4_err(dev, "Failed to initialize "
- "queue pair table, aborting.\n");
- goto err_srq_table_free;
- }
- if (!mlx4_is_slave(dev)) {
- err = mlx4_init_mcg_table(dev);
- if (err) {
- mlx4_err(dev, "Failed to initialize "
- "multicast group table, aborting.\n");
- goto err_qp_table_free;
- }
- }
- err = mlx4_init_counters_table(dev);
- if (err && err != -ENOENT) {
- mlx4_err(dev, "Failed to initialize counters table, aborting.\n");
- goto err_mcg_table_free;
- }
- if (!mlx4_is_slave(dev)) {
- for (port = 1; port <= dev->caps.num_ports; port++) {
- ib_port_default_caps = 0;
- err = mlx4_get_port_ib_caps(dev, port,
- &ib_port_default_caps);
- if (err)
- mlx4_warn(dev, "failed to get port %d default "
- "ib capabilities (%d). Continuing "
- "with caps = 0\n", port, err);
- dev->caps.ib_port_def_cap[port] = ib_port_default_caps;
- if (mlx4_is_mfunc(dev))
- dev->caps.port_ib_mtu[port] = IB_MTU_2048;
- else
- dev->caps.port_ib_mtu[port] = IB_MTU_4096;
- err = mlx4_SET_PORT(dev, port);
- if (err) {
- mlx4_err(dev, "Failed to set port %d, aborting\n",
- port);
- goto err_counters_table_free;
- }
- }
- }
- return 0;
- err_counters_table_free:
- mlx4_cleanup_counters_table(dev);
- err_mcg_table_free:
- mlx4_cleanup_mcg_table(dev);
- err_qp_table_free:
- mlx4_cleanup_qp_table(dev);
- err_srq_table_free:
- mlx4_cleanup_srq_table(dev);
- err_cq_table_free:
- mlx4_cleanup_cq_table(dev);
- err_cmd_poll:
- mlx4_cmd_use_polling(dev);
- err_eq_table_free:
- mlx4_cleanup_eq_table(dev);
- err_mr_table_free:
- mlx4_cleanup_mr_table(dev);
- err_xrcd_table_free:
- mlx4_cleanup_xrcd_table(dev);
- err_pd_table_free:
- mlx4_cleanup_pd_table(dev);
- err_kar_unmap:
- iounmap(priv->kar);
- err_uar_free:
- mlx4_uar_free(dev, &priv->driver_uar);
- err_uar_table_free:
- mlx4_cleanup_uar_table(dev);
- return err;
- }
- static void mlx4_enable_msi_x(struct mlx4_dev *dev)
- {
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct msix_entry *entries;
- int nreq = min_t(int, dev->caps.num_ports *
- min_t(int, num_online_cpus() + 1, MAX_MSIX_P_PORT)
- + MSIX_LEGACY_SZ, MAX_MSIX);
- int err;
- int i;
- if (msi_x) {
- nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs,
- nreq);
- entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL);
- if (!entries)
- goto no_msi;
- for (i = 0; i < nreq; ++i)
- entries[i].entry = i;
- retry:
- err = pci_enable_msix(dev->pdev, entries, nreq);
- if (err) {
- /* Try again if at least 2 vectors are available */
- if (err > 1) {
- mlx4_info(dev, "Requested %d vectors, "
- "but only %d MSI-X vectors available, "
- "trying again\n", nreq, err);
- nreq = err;
- goto retry;
- }
- kfree(entries);
- goto no_msi;
- }
- if (nreq <
- MSIX_LEGACY_SZ + dev->caps.num_ports * MIN_MSIX_P_PORT) {
- /*Working in legacy mode , all EQ's shared*/
- dev->caps.comp_pool = 0;
- dev->caps.num_comp_vectors = nreq - 1;
- } else {
- dev->caps.comp_pool = nreq - MSIX_LEGACY_SZ;
- dev->caps.num_comp_vectors = MSIX_LEGACY_SZ - 1;
- }
- for (i = 0; i < nreq; ++i)
- priv->eq_table.eq[i].irq = entries[i].vector;
- dev->flags |= MLX4_FLAG_MSI_X;
- kfree(entries);
- return;
- }
- no_msi:
- dev->caps.num_comp_vectors = 1;
- dev->caps.comp_pool = 0;
- for (i = 0; i < 2; ++i)
- priv->eq_table.eq[i].irq = dev->pdev->irq;
- }
- static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
- {
- struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
- int err = 0;
- info->dev = dev;
- info->port = port;
- if (!mlx4_is_slave(dev)) {
- INIT_RADIX_TREE(&info->mac_tree, GFP_KERNEL);
- mlx4_init_mac_table(dev, &info->mac_table);
- mlx4_init_vlan_table(dev, &info->vlan_table);
- info->base_qpn =
- dev->caps.reserved_qps_base[MLX4_QP_REGION_ETH_ADDR] +
- (port - 1) * (1 << log_num_mac);
- }
- sprintf(info->dev_name, "mlx4_port%d", port);
- info->port_attr.attr.name = info->dev_name;
- if (mlx4_is_mfunc(dev))
- info->port_attr.attr.mode = S_IRUGO;
- else {
- info->port_attr.attr.mode = S_IRUGO | S_IWUSR;
- info->port_attr.store = set_port_type;
- }
- info->port_attr.show = show_port_type;
- sysfs_attr_init(&info->port_attr.attr);
- err = device_create_file(&dev->pdev->dev, &info->port_attr);
- if (err) {
- mlx4_err(dev, "Failed to create file for port %d\n", port);
- info->port = -1;
- }
- sprintf(info->dev_mtu_name, "mlx4_port%d_mtu", port);
- info->port_mtu_attr.attr.name = info->dev_mtu_name;
- if (mlx4_is_mfunc(dev))
- info->port_mtu_attr.attr.mode = S_IRUGO;
- else {
- info->port_mtu_attr.attr.mode = S_IRUGO | S_IWUSR;
- info->port_mtu_attr.store = set_port_ib_mtu;
- }
- info->port_mtu_attr.show = show_port_ib_mtu;
- sysfs_attr_init(&info->port_mtu_attr.attr);
- err = device_create_file(&dev->pdev->dev, &info->port_mtu_attr);
- if (err) {
- mlx4_err(dev, "Failed to create mtu file for port %d\n", port);
- device_remove_file(&info->dev->pdev->dev, &info->port_attr);
- info->port = -1;
- }
- return err;
- }
- static void mlx4_cleanup_port_info(struct mlx4_port_info *info)
- {
- if (info->port < 0)
- return;
- device_remove_file(&info->dev->pdev->dev, &info->port_attr);
- device_remove_file(&info->dev->pdev->dev, &info->port_mtu_attr);
- }
- static int mlx4_init_steering(struct mlx4_dev *dev)
- {
- struct mlx4_priv *priv = mlx4_priv(dev);
- int num_entries = dev->caps.num_ports;
- int i, j;
- priv->steer = kzalloc(sizeof(struct mlx4_steer) * num_entries, GFP_KERNEL);
- if (!priv->steer)
- return -ENOMEM;
- for (i = 0; i < num_entries; i++)
- for (j = 0; j < MLX4_NUM_STEERS; j++) {
- INIT_LIST_HEAD(&priv->steer[i].promisc_qps[j]);
- INIT_LIST_HEAD(&priv->steer[i].steer_entries[j]);
- }
- return 0;
- }
- static void mlx4_clear_steering(struct mlx4_dev *dev)
- {
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_steer_index *entry, *tmp_entry;
- struct mlx4_promisc_qp *pqp, *tmp_pqp;
- int num_entries = dev->caps.num_ports;
- int i, j;
- for (i = 0; i < num_entries; i++) {
- for (j = 0; j < MLX4_NUM_STEERS; j++) {
- list_for_each_entry_safe(pqp, tmp_pqp,
- &priv->steer[i].promisc_qps[j],
- list) {
- list_del(&pqp->list);
- kfree(pqp);
- }
- list_for_each_entry_safe(entry, tmp_entry,
- &priv->steer[i].steer_entries[j],
- list) {
- list_del(&entry->list);
- list_for_each_entry_safe(pqp, tmp_pqp,
- &entry->duplicates,
- list) {
- list_del(&pqp->list);
- kfree(pqp);
- }
- kfree(entry);
- }
- }
- }
- kfree(priv->steer);
- }
- static int extended_func_num(struct pci_dev *pdev)
- {
- return PCI_SLOT(pdev->devfn) * 8 + PCI_FUNC(pdev->devfn);
- }
- #define MLX4_OWNER_BASE 0x8069c
- #define MLX4_OWNER_SIZE 4
- static int mlx4_get_ownership(struct mlx4_dev *dev)
- {
- void __iomem *owner;
- u32 ret;
- owner = ioremap(pci_resource_start(dev->pdev, 0) + MLX4_OWNER_BASE,
- MLX4_OWNER_SIZE);
- if (!owner) {
- mlx4_err(dev, "Failed to obtain ownership bit\n");
- return -ENOMEM;
- }
- ret = readl(owner);
- iounmap(owner);
- return (int) !!ret;
- }
- static void mlx4_free_ownership(struct mlx4_dev *dev)
- {
- void __iomem *owner;
- owner = ioremap(pci_resource_start(dev->pdev, 0) + MLX4_OWNER_BASE,
- MLX4_OWNER_SIZE);
- if (!owner) {
- mlx4_err(dev, "Failed to obtain ownership bit\n");
- return;
- }
- writel(0, owner);
- msleep(1000);
- iounmap(owner);
- }
- static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data)
- {
- struct mlx4_priv *priv;
- struct mlx4_dev *dev;
- int err;
- int port;
- pr_info(DRV_NAME ": Initializing %s\n", pci_name(pdev));
- err = pci_enable_device(pdev);
- if (err) {
- dev_err(&pdev->dev, "Cannot enable PCI device, "
- "aborting.\n");
- return err;
- }
- if (num_vfs > MLX4_MAX_NUM_VF) {
- printk(KERN_ERR "There are more VF's (%d) than allowed(%d)\n",
- num_vfs, MLX4_MAX_NUM_VF);
- return -EINVAL;
- }
- /*
- * Check for BARs.
- */
- if (!(pci_dev_data & MLX4_PCI_DEV_IS_VF) &&
- !(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
- dev_err(&pdev->dev, "Missing DCS, aborting."
- "(driver_data: 0x%x, pci_resource_flags(pdev, 0):0x%lx)\n",
- pci_dev_data, pci_resource_flags(pdev, 0));
- err = -ENODEV;
- goto err_disable_pdev;
- }
- if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
- dev_err(&pdev->dev, "Missing UAR, aborting.\n");
- err = -ENODEV;
- goto err_disable_pdev;
- }
- err = pci_request_regions(pdev, DRV_NAME);
- if (err) {
- dev_err(&pdev->dev, "Couldn't get PCI resources, aborting\n");
- goto err_disable_pdev;
- }
- pci_set_master(pdev);
- err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
- if (err) {
- dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
- err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
- if (err) {
- dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
- goto err_release_regions;
- }
- }
- err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
- if (err) {
- dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
- "consistent PCI DMA mask.\n");
- err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
- if (err) {
- dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
- "aborting.\n");
- goto err_release_regions;
- }
- }
- /* Allow large DMA segments, up to the firmware limit of 1 GB */
- dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
- dev = pci_get_drvdata(pdev);
- priv = mlx4_priv(dev);
- dev->pdev = pdev;
- INIT_LIST_HEAD(&priv->ctx_list);
- spin_lock_init(&priv->ctx_lock);
- mutex_init(&priv->port_mutex);
- INIT_LIST_HEAD(&priv->pgdir_list);
- mutex_init(&priv->pgdir_mutex);
- INIT_LIST_HEAD(&priv->bf_list);
- mutex_init(&priv->bf_mutex);
- dev->rev_id = pdev->revision;
- /* Detect if this device is a virtual function */
- if (pci_dev_data & MLX4_PCI_DEV_IS_VF) {
- /* When acting as pf, we normally skip vfs unless explicitly
- * requested to probe them. */
- if (num_vfs && extended_func_num(pdev) > probe_vf) {
- mlx4_warn(dev, "Skipping virtual function:%d\n",
- extended_func_num(pdev));
- err = -ENODEV;
- goto err_free_dev;
- }
- mlx4_warn(dev, "Detected virtual function - running in slave mode\n");
- dev->flags |= MLX4_FLAG_SLAVE;
- } else {
- /* We reset the device and enable SRIOV only for physical
- * devices. Try to claim ownership on the device;
- * if already taken, skip -- do not allow multiple PFs */
- err = mlx4_get_ownership(dev);
- if (err) {
- if (err < 0)
- goto err_free_dev;
- else {
- mlx4_warn(dev, "Multiple PFs not yet supported."
- " Skipping PF.\n");
- err = -EINVAL;
- goto err_free_dev;
- }
- }
- if (num_vfs) {
- mlx4_warn(dev, "Enabling sriov with:%d vfs\n", num_vfs);
- err = pci_enable_sriov(pdev, num_vfs);
- if (err) {
- mlx4_err(dev, "Failed to enable sriov,"
- "continuing without sriov enabled"
- " (err = %d).\n", err);
- num_vfs = 0;
- err = 0;
- } else {
- mlx4_warn(dev, "Running in master mode\n");
- dev->flags |= MLX4_FLAG_SRIOV |
- MLX4_FLAG_MASTER;
- dev->num_vfs = num_vfs;
- }
- }
- /*
- * Now reset the HCA before we touch the PCI capabilities or
- * attempt a firmware command, since a boot ROM may have left
- * the HCA in an undefined state.
- */
- err = mlx4_reset(dev);
- if (err) {
- mlx4_err(dev, "Failed to reset HCA, aborting.\n");
- goto err_rel_own;
- }
- }
- slave_start:
- if (mlx4_cmd_init(dev)) {
- mlx4_err(dev, "Failed to init command interface, aborting.\n");
- goto err_sriov;
- }
- /* In slave functions, the communication channel must be initialized
- * before posting commands. Also, init num_slaves before calling
- * mlx4_init_hca */
- if (mlx4_is_mfunc(dev)) {
- if (mlx4_is_master(dev))
- dev->num_slaves = MLX4_MAX_NUM_SLAVES;
- else {
- dev->num_slaves = 0;
- if (mlx4_multi_func_init(dev)) {
- mlx4_err(dev, "Failed to init slave mfunc"
- " interface, aborting.\n");
- goto err_cmd;
- }
- }
- }
- err = mlx4_init_hca(dev);
- if (err) {
- if (err == -EACCES) {
- /* Not primary Physical function
- * Running in slave mode */
- mlx4_cmd_cleanup(dev);
- dev->flags |= MLX4_FLAG_SLAVE;
- dev->flags &= ~MLX4_FLAG_MASTER;
- goto slave_start;
- } else
- goto err_mfunc;
- }
- /* In master functions, the communication channel must be initialized
- * after obtaining its address from fw */
- if (mlx4_is_master(dev)) {
- if (mlx4_multi_func_init(dev)) {
- mlx4_err(dev, "Failed to init master mfunc"
- "interface, aborting.\n");
- goto err_close;
- }
- }
- err = mlx4_alloc_eq_table(dev);
- if (err)
- goto err_master_mfunc;
- priv->msix_ctl.pool_bm = 0;
- mutex_init(&priv->msix_ctl.pool_lock);
- mlx4_enable_msi_x(dev);
- if ((mlx4_is_mfunc(dev)) &&
- !(dev->flags & MLX4_FLAG_MSI_X)) {
- mlx4_err(dev, "INTx is not supported in multi-function mode."
- " aborting.\n");
- goto err_free_eq;
- }
- if (!mlx4_is_slave(dev)) {
- err = mlx4_init_steering(dev);
- if (err)
- goto err_free_eq;
- }
- err = mlx4_setup_hca(dev);
- if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X) &&
- !mlx4_is_mfunc(dev)) {
- dev->flags &= ~MLX4_FLAG_MSI_X;
- pci_disable_msix(pdev);
- err = mlx4_setup_hca(dev);
- }
- if (err)
- goto err_steer;
- for (port = 1; port <= dev->caps.num_ports; port++) {
- err = mlx4_init_port_info(dev, port);
- if (err)
- goto err_port;
- }
- err = mlx4_register_device(dev);
- if (err)
- goto err_port;
- mlx4_sense_init(dev);
- mlx4_start_sense(dev);
- priv->removed = 0;
- return 0;
- err_port:
- for (--port; port >= 1; --port)
- mlx4_cleanup_port_info(&priv->port[port]);
- mlx4_cleanup_counters_table(dev);
- mlx4_cleanup_mcg_table(dev);
- mlx4_cleanup_qp_table(dev);
- mlx4_cleanup_srq_table(dev);
- mlx4_cleanup_cq_table(dev);
- mlx4_cmd_use_polling(dev);
- mlx4_cleanup_eq_table(dev);
- mlx4_cleanup_mr_table(dev);
- mlx4_cleanup_xrcd_table(dev);
- mlx4_cleanup_pd_table(dev);
- mlx4_cleanup_uar_table(dev);
- err_steer:
- if (!mlx4_is_slave(dev))
- mlx4_clear_steering(dev);
- err_free_eq:
- mlx4_free_eq_table(dev);
- err_master_mfunc:
- if (mlx4_is_master(dev))
- mlx4_multi_func_cleanup(dev);
- err_close:
- if (dev->flags & MLX4_FLAG_MSI_X)
- pci_disable_msix(pdev);
- mlx4_close_hca(dev);
- err_mfunc:
- if (mlx4_is_slave(dev))
- mlx4_multi_func_cleanup(dev);
- err_cmd:
- mlx4_cmd_cleanup(dev);
- err_sriov:
- if (num_vfs && (dev->flags & MLX4_FLAG_SRIOV))
- pci_disable_sriov(pdev);
- err_rel_own:
- if (!mlx4_is_slave(dev))
- mlx4_free_ownership(dev);
- err_free_dev:
- kfree(priv);
- err_release_regions:
- pci_release_regions(pdev);
- err_disable_pdev:
- pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
- return err;
- }
- static int __devinit mlx4_init_one(struct pci_dev *pdev,
- const struct pci_device_id *id)
- {
- struct mlx4_priv *priv;
- struct mlx4_dev *dev;
- printk_once(KERN_INFO "%s", mlx4_version);
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
- dev = &priv->dev;
- pci_set_drvdata(pdev, dev);
- priv->pci_dev_data = id->driver_data;
- return __mlx4_init_one(pdev, id->driver_data);
- }
- static void __mlx4_remove_one(struct pci_dev *pdev)
- {
- struct mlx4_dev *dev = pci_get_drvdata(pdev);
- struct mlx4_priv *priv = mlx4_priv(dev);
- int pci_dev_data;
- int p;
- if (priv->removed)
- return;
- pci_dev_data = priv->pci_dev_data;
- /* in SRIOV it is not allowed to unload the pf's
- * driver while there are alive vf's */
- if (mlx4_is_master(dev)) {
- if (mlx4_how_many_lives_vf(dev))
- printk(KERN_ERR "Removing PF when there are assigned VF's !!!\n");
- }
- mlx4_stop_sense(dev);
- mlx4_unregister_device(dev);
- for (p = 1; p <= dev->caps.num_ports; p++) {
- mlx4_cleanup_port_info(&priv->port[p]);
- mlx4_CLOSE_PORT(dev, p);
- }
- mlx4_cleanup_counters_table(dev);
- mlx4_cleanup_mcg_table(dev);
- mlx4_cleanup_qp_table(dev);
- mlx4_cleanup_srq_table(dev);
- mlx4_cleanup_cq_table(dev);
- mlx4_cmd_use_polling(dev);
- mlx4_cleanup_eq_table(dev);
- mlx4_cleanup_mr_table(dev);
- mlx4_cleanup_xrcd_table(dev);
- mlx4_cleanup_pd_table(dev);
- if (mlx4_is_master(dev))
- mlx4_free_resource_tracker(dev);
- iounmap(priv->kar);
- mlx4_uar_free(dev, &priv->driver_uar);
- mlx4_cleanup_uar_table(dev);
- if (!mlx4_is_slave(dev))
- mlx4_clear_steering(dev);
- mlx4_free_eq_table(dev);
- if (mlx4_is_master(dev))
- mlx4_multi_func_cleanup(dev);
- mlx4_close_hca(dev);
- if (mlx4_is_slave(dev))
- mlx4_multi_func_cleanup(dev);
- mlx4_cmd_cleanup(dev);
- if (dev->flags & MLX4_FLAG_MSI_X)
- pci_disable_msix(pdev);
- if (num_vfs && (dev->flags & MLX4_FLAG_SRIOV)) {
- mlx4_warn(dev, "Disabling sriov\n");
- pci_disable_sriov(pdev);
- }
- if (!mlx4_is_slave(dev))
- mlx4_free_ownership(dev);
- pci_release_regions(pdev);
- pci_disable_device(pdev);
- memset(priv, 0, sizeof(*priv));
- priv->pci_dev_data = pci_dev_data;
- priv->removed = 1;
- }
- static void mlx4_remove_one(struct pci_dev *pdev)
- {
- struct mlx4_dev *dev = pci_get_drvdata(pdev);
- struct mlx4_priv *priv = mlx4_priv(dev);
- __mlx4_remove_one(pdev);
- kfree(priv);
- pci_set_drvdata(pdev, NULL);
- }
- int mlx4_restart_one(struct pci_dev *pdev)
- {
- struct mlx4_dev *dev = pci_get_drvdata(pdev);
- struct mlx4_priv *priv = mlx4_priv(dev);
- int pci_dev_data;
- pci_dev_data = priv->pci_dev_data;
- __mlx4_remove_one(pdev);
- return __mlx4_init_one(pdev, pci_dev_data);
- }
- static DEFINE_PCI_DEVICE_TABLE(mlx4_pci_table) = {
- /* MT25408 "Hermon" SDR */
- { PCI_VDEVICE(MELLANOX, 0x6340), 0 },
- /* MT25408 "Hermon" DDR */
- { PCI_VDEVICE(MELLANOX, 0x634a), 0 },
- /* MT25408 "Hermon" QDR */
- { PCI_VDEVICE(MELLANOX, 0x6354), 0 },
- /* MT25408 "Hermon" DDR PCIe gen2 */
- { PCI_VDEVICE(MELLANOX, 0x6732), 0 },
- /* MT25408 "Hermon" QDR PCIe gen2 */
- { PCI_VDEVICE(MELLANOX, 0x673c), 0 },
- /* MT25408 "Hermon" EN 10GigE */
- { PCI_VDEVICE(MELLANOX, 0x6368), 0 },
- /* MT25408 "Hermon" EN 10GigE PCIe gen2 */
- { PCI_VDEVICE(MELLANOX, 0x6750), 0 },
- /* MT25458 ConnectX EN 10GBASE-T 10GigE */
- { PCI_VDEVICE(MELLANOX, 0x6372), 0 },
- /* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */
- { PCI_VDEVICE(MELLANOX, 0x675a), 0 },
- /* MT26468 ConnectX EN 10GigE PCIe gen2*/
- { PCI_VDEVICE(MELLANOX, 0x6764), 0 },
- /* MT26438 ConnectX EN 40GigE PCIe gen2 5GT/s */
- { PCI_VDEVICE(MELLANOX, 0x6746), 0 },
- /* MT26478 ConnectX2 40GigE PCIe gen2 */
- { PCI_VDEVICE(MELLANOX, 0x676e), 0 },
- /* MT25400 Family [ConnectX-2 Virtual Function] */
- { PCI_VDEVICE(MELLANOX, 0x1002), MLX4_PCI_DEV_IS_VF },
- /* MT27500 Family [ConnectX-3] */
- { PCI_VDEVICE(MELLANOX, 0x1003), 0 },
- /* MT27500 Family [ConnectX-3 Virtual Function] */
- { PCI_VDEVICE(MELLANOX, 0x1004), MLX4_PCI_DEV_IS_VF },
- { PCI_VDEVICE(MELLANOX, 0x1005), 0 }, /* MT27510 Family */
- { PCI_VDEVICE(MELLANOX, 0x1006), 0 }, /* MT27511 Family */
- { PCI_VDEVICE(MELLANOX, 0x1007), 0 }, /* MT27520 Family */
- { PCI_VDEVICE(MELLANOX, 0x1008), 0 }, /* MT27521 Family */
- { PCI_VDEVICE(MELLANOX, 0x1009), 0 }, /* MT27530 Family */
- { PCI_VDEVICE(MELLANOX, 0x100a), 0 }, /* MT27531 Family */
- { PCI_VDEVICE(MELLANOX, 0x100b), 0 }, /* MT27540 Family */
- { PCI_VDEVICE(MELLANOX, 0x100c), 0 }, /* MT27541 Family */
- { PCI_VDEVICE(MELLANOX, 0x100d), 0 }, /* MT27550 Family */
- { PCI_VDEVICE(MELLANOX, 0x100e), 0 }, /* MT27551 Family */
- { PCI_VDEVICE(MELLANOX, 0x100f), 0 }, /* MT27560 Family */
- { PCI_VDEVICE(MELLANOX, 0x1010), 0 }, /* MT27561 Family */
- { 0, }
- };
- MODULE_DEVICE_TABLE(pci, mlx4_pci_table);
- static struct pci_driver mlx4_driver = {
- .name = DRV_NAME,
- .id_table = mlx4_pci_table,
- .probe = mlx4_init_one,
- .remove = __devexit_p(mlx4_remove_one)
- };
- static int __init mlx4_verify_params(void)
- {
- if ((log_num_mac < 0) || (log_num_mac > 7)) {
- pr_warning("mlx4_core: bad num_mac: %d\n", log_num_mac);
- return -1;
- }
- if (log_num_vlan != 0)
- pr_warning("mlx4_core: log_num_vlan - obsolete module param, using %d\n",
- MLX4_LOG_NUM_VLANS);
- if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 7)) {
- pr_warning("mlx4_core: bad log_mtts_per_seg: %d\n", log_mtts_per_seg);
- return -1;
- }
- /* Check if module param for ports type has legal combination */
- if (port_type_array[0] == false && port_type_array[1] == true) {
- printk(KERN_WARNING "Module parameter configuration ETH/IB is not supported. Switching to default configuration IB/IB\n");
- port_type_array[0] = true;
- }
- return 0;
- }
- static int __init mlx4_init(void)
- {
- int ret;
- if (mlx4_verify_params())
- return -EINVAL;
- mlx4_catas_init();
- mlx4_wq = create_singlethread_workqueue("mlx4");
- if (!mlx4_wq)
- return -ENOMEM;
- ret = pci_register_driver(&mlx4_driver);
- return ret < 0 ? ret : 0;
- }
- static void __exit mlx4_cleanup(void)
- {
- pci_unregister_driver(&mlx4_driver);
- destroy_workqueue(mlx4_wq);
- }
- module_init(mlx4_init);
- module_exit(mlx4_cleanup);
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